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     data        files  public Table of taxonomic hierarchy and the sampling method for organisms collection in Aleutian
Island kelp forests, June 2016 and July 2017 (Kelp Forest Ecosystem Engineer Loss project)
   ?     I   M   background (external link) RSS Subscribe BCO-DMO bcodmo_dataset_728110

The Dataset's Variables and Attributes

Row Type Variable Name Attribute Name Data Type Value
attribute NC_GLOBAL access_formats String .htmlTable,.csv,.json,.mat,.nc,.tsv
attribute NC_GLOBAL acquisition_description String Sampling locations were from the Aleutian Archipelago nearshore between
longitude 173.9 and -167.6 in June 2016 and July 2017. The average depth 17.5
ft.

To assess community structure at each site, two methods were used. First, to
quantify the remainder of the epibenthic community, ten 0.25 m2 quadrats were
haphazardly placed within each site. Within these quadrats, the percent bottom
cover was visually estimated for bare substrate, kelp holdfasts, suspension
feeders, pulvinate green algae (Codium spp.), and non-geniculate coralline
algae - with differentiation made between Clathromorphum spp. and other
encrusting coralline species.

Following visual estimation, all epibenthic organisms\u2014excepting those
strongly adhered to the substrate (e.g., barnacles, non-geniculate coralline
algae, etc.)\u2014 were scraped from the substrate and placed in fine mesh
collection bags for shipboard identification, and abundance and biomass
determination. Second, three 10 m x 2 m swaths were placed haphazardly within
each site. Within each swath, E. fistulosa stipes were counted, midwater and
demersal fishes visually quantified by trained divers, and all conspicuous,
sparsely distributed, large, mobile invertebrates (i.e., sea stars, crab, and
large gastropods with distributions assumed to be less than 1 per 2.5 m2, the
total area covered by the above quadrats) were collected in fine mesh bags for
shipboard abundance and biomass determination. Once onboard, organisms were
identified to the lowest possible taxa, counted (if the species occur as
discrete individuals) and weighed using hanging spring scales to determine
biomass to the nearest .005 kg. Ambiguous or difficult to identify individuals
were preserved in 10% formalin (for invertebrates) or pressed (for algae) for
later identification.

Related data are presented in Konar et al (2017).
attribute NC_GLOBAL awards_0_award_nid String 709510
attribute NC_GLOBAL awards_0_award_number String OCE-1435205
attribute NC_GLOBAL awards_0_data_url String http://www.nsf.gov/awardsearch/showAward.do?AwardNumber=1435205 (external link)
attribute NC_GLOBAL awards_0_funder_name String NSF Division of Ocean Sciences
attribute NC_GLOBAL awards_0_funding_acronym String NSF OCE
attribute NC_GLOBAL awards_0_funding_source_nid String 355
attribute NC_GLOBAL awards_0_program_manager String Michael E. Sieracki
attribute NC_GLOBAL awards_0_program_manager_nid String 50446
attribute NC_GLOBAL awards_1_award_nid String 709515
attribute NC_GLOBAL awards_1_award_number String OCE-1435194
attribute NC_GLOBAL awards_1_data_url String http://www.nsf.gov/awardsearch/showAward.do?AwardNumber=1435194 (external link)
attribute NC_GLOBAL awards_1_funder_name String NSF Division of Ocean Sciences
attribute NC_GLOBAL awards_1_funding_acronym String NSF OCE
attribute NC_GLOBAL awards_1_funding_source_nid String 355
attribute NC_GLOBAL awards_1_program_manager String Michael E. Sieracki
attribute NC_GLOBAL awards_1_program_manager_nid String 50446
attribute NC_GLOBAL cdm_data_type String Other
attribute NC_GLOBAL comment String (BIOMASS) Community taxonomy & collection method
Aleutian Island kelp forest, 2016-2017
PI's: M. Edwards (SDSU), B. Konar, J. Metzger (UAF)
version: 2018-03-02
attribute NC_GLOBAL Conventions String COARDS, CF-1.6, ACDD-1.3
attribute NC_GLOBAL creator_email String info at bco-dmo.org
attribute NC_GLOBAL creator_name String BCO-DMO
attribute NC_GLOBAL creator_type String institution
attribute NC_GLOBAL creator_url String https://www.bco-dmo.org/ (external link)
attribute NC_GLOBAL data_source String extract_data_as_tsv version 2.3 19 Dec 2019
attribute NC_GLOBAL date_created String 2018-02-21T14:02:12Z
attribute NC_GLOBAL date_modified String 2019-12-11T17:04:41Z
attribute NC_GLOBAL defaultDataQuery String &time<now
attribute NC_GLOBAL doi String 10.1575/1912/bco-dmo.728110.1
attribute NC_GLOBAL infoUrl String https://www.bco-dmo.org/dataset/728110 (external link)
attribute NC_GLOBAL institution String BCO-DMO
attribute NC_GLOBAL keywords String array, array-data, bco, bco-dmo, biological, chemical, class, comprehensive, data, dataset, dmo, erddap, family, genus, kingdom, large, management, method, oceanography, office, order, Order_Subclass, phylum, preliminary, sampling, Sampling_method, species, stewardship, subclass, system, taxon
attribute NC_GLOBAL license String https://www.bco-dmo.org/dataset/728110/license (external link)
attribute NC_GLOBAL metadata_source String https://www.bco-dmo.org/api/dataset/728110 (external link)
attribute NC_GLOBAL param_mapping String {'728110': {}}
attribute NC_GLOBAL parameter_source String https://www.bco-dmo.org/mapserver/dataset/728110/parameters (external link)
attribute NC_GLOBAL people_0_affiliation String San Diego State University
attribute NC_GLOBAL people_0_affiliation_acronym String SDSU
attribute NC_GLOBAL people_0_person_name String Matthew Edwards
attribute NC_GLOBAL people_0_person_nid String 51390
attribute NC_GLOBAL people_0_role String Principal Investigator
attribute NC_GLOBAL people_0_role_type String originator
attribute NC_GLOBAL people_1_affiliation String University of Alaska Fairbanks
attribute NC_GLOBAL people_1_affiliation_acronym String UAF
attribute NC_GLOBAL people_1_person_name String Brenda Konar
attribute NC_GLOBAL people_1_person_nid String 51388
attribute NC_GLOBAL people_1_role String Co-Principal Investigator
attribute NC_GLOBAL people_1_role_type String originator
attribute NC_GLOBAL people_2_affiliation String University of Alaska Fairbanks
attribute NC_GLOBAL people_2_affiliation_acronym String UAF
attribute NC_GLOBAL people_2_person_name String Jacob R. Metzger
attribute NC_GLOBAL people_2_person_nid String 727068
attribute NC_GLOBAL people_2_role String Contact
attribute NC_GLOBAL people_2_role_type String related
attribute NC_GLOBAL people_3_affiliation String Woods Hole Oceanographic Institution
attribute NC_GLOBAL people_3_affiliation_acronym String WHOI BCO-DMO
attribute NC_GLOBAL people_3_person_name String Nancy Copley
attribute NC_GLOBAL people_3_person_nid String 50396
attribute NC_GLOBAL people_3_role String BCO-DMO Data Manager
attribute NC_GLOBAL people_3_role_type String related
attribute NC_GLOBAL project String Kelp Forest Ecosystem Engineer Loss
attribute NC_GLOBAL projects_0_acronym String Kelp Forest Ecosystem Engineer Loss
attribute NC_GLOBAL projects_0_description String NSF abstract:
In many ecosystems the presence of a single dominant species can modify the physical conditions of the environment and alter patterns of biodiversity, nutrient cycling, and primary production. Losses of these "ecosystem engineers" can have profound impacts to how ecosystems function. Coastal kelps provide excellent examples of organisms whose structure modifies the physical characteristics of their habitats (light, nutrients, water motion) and supports enhanced biodiversity. The kelp forests in the coastal waters of the Aleutian Archipelago have suffered large-scale declines over the past several decades. This project will examine how these losses impact patterns of ecosystem production and biodiversity using a combination of techniques ranging from in situ benthic chambers and shipboard incubations to remote sensing using satellite imagery. The results will provide an understanding of how such events may impact this and other ecosystems. This project will support graduate students and will introduce the public to the Aleutian ecosystems in a series of videos. The investigators will also work with a San Diego high school teacher to integrate project findings into classroom activities, and they expect to involve a teacher in their field program.
The investigators will ask two highly integrated questions: 1) How do the widespread losses of kelp forests impact benthic productivity across the Aleutian Archipelago? 2) How do the widespread losses of kelp forests impact benthic biodiversity and community structure across the archipelago? To address these, the investigators will estimate changes to productivity at ten islands where they have historic data on seaweed community composition and estimates of kelp canopy cover. They will use in situ benthic chambers placed in both kelp forests and urchin barrens to measure plot-scale patterns of net ecosystem productivity (NEP), and shipboard incubations to examine net primary productivity (NPP) for the dominant macroalgae. Data for individual species rates of NPP will be scaled by their biomass and combined with in situ plot-scale benthic chamber experiments of whole communities to estimate NEP at the islands visited. These estimates will be scaled up to calculate NEP across the entire archipelago by first extrapolating results from the study sites to entire islands, and then across the archipelago. They will also estimate broad-scale patterns in production by characterizing water column irradiances across the archipelago and modeling NPP using species-level relationships between irradiance and photosynthesis. Coupling these with estimates of water column irradiance and community respiration will allow modeling of NEP across this region. Benthic biodiversity will be assessed using diver surveys and shipboard benthic trawls. Following these activities, satellite remote sensing of the kelp canopies dating back to the 1980s and the investigators' own historical data on benthic macroalgal abundances at these and other islands will be used to estimate the temporal and spatial patterns of change across the archipelago.
For more information see:
Project blog: http://sdsukelp.weebly.com/blog
Project website: http://www.uaf.edu/cfos/research/projects/collaborative-research--/
attribute NC_GLOBAL projects_0_end_date String 2018-08
attribute NC_GLOBAL projects_0_geolocation String Aleutian Islands Alaska (Attu Island to Unalaska)
attribute NC_GLOBAL projects_0_name String Collaborative Research: Changes in ecosystem production and benthic biodiversity following the widespread loss of an ecosystem engineer
attribute NC_GLOBAL projects_0_project_nid String 709511
attribute NC_GLOBAL projects_0_project_website String http://sdsukelp.weebly.com/blog (external link)
attribute NC_GLOBAL projects_0_start_date String 2015-09
attribute NC_GLOBAL publisher_name String Biological and Chemical Oceanographic Data Management Office (BCO-DMO)
attribute NC_GLOBAL publisher_type String institution
attribute NC_GLOBAL sourceUrl String (local files)
attribute NC_GLOBAL standard_name_vocabulary String CF Standard Name Table v55
attribute NC_GLOBAL summary String This dataset includes the taxonomic hierarchy for epibenthic community organisms collected in Aleutian Island kelp forests, based on biomass data. It also lists the method used to sample, either by a scrape collection or by a visual count along a swath.
attribute NC_GLOBAL title String Table of taxonomic hierarchy and the sampling method for organisms collection in Aleutian Island kelp forests, June 2016 and July 2017 (Kelp Forest Ecosystem Engineer Loss project)
attribute NC_GLOBAL version String 1
attribute NC_GLOBAL xml_source String osprey2erddap.update_xml() v1.3
variable Taxon   String  
attribute Taxon bcodmo_name String taxon
attribute Taxon description String taxonomic name
attribute Taxon long_name String Taxon
attribute Taxon units String unitless
variable Kingdom   String  
attribute Kingdom bcodmo_name String kingdom
attribute Kingdom description String taxonomic kingdom
attribute Kingdom long_name String Kingdom
attribute Kingdom units String unitless
variable Phylum   String  
attribute Phylum bcodmo_name String phylum
attribute Phylum description String taxonomic phylum
attribute Phylum long_name String Phylum
attribute Phylum units String unitless
variable Class   String  
attribute Class bcodmo_name String class
attribute Class description String taxonomic class
attribute Class long_name String Class
attribute Class units String unitless
variable Order_Subclass   String  
attribute Order_Subclass bcodmo_name String order
attribute Order_Subclass description String taxonomic order or subclass
attribute Order_Subclass long_name String Order Subclass
attribute Order_Subclass units String unitless
variable Family   String  
attribute Family bcodmo_name String family
attribute Family description String taxonomic family
attribute Family long_name String Family
attribute Family units String unitless
variable Genus   String  
attribute Genus bcodmo_name String genus
attribute Genus description String taxonomic genus
attribute Genus long_name String Genus
attribute Genus units String unitless
variable Species   String  
attribute Species bcodmo_name String species
attribute Species description String taxonomic species
attribute Species long_name String Species
attribute Species units String unitless
variable Sampling_method   String  
attribute Sampling_method bcodmo_name String sampling_method
attribute Sampling_method description String taxonomic method
attribute Sampling_method long_name String Sampling Method
attribute Sampling_method units String unitless

The information in the table above is also available in other file formats (.csv, .htmlTable, .itx, .json, .jsonlCSV1, .jsonlCSV, .jsonlKVP, .mat, .nc, .nccsv, .tsv, .xhtml) via a RESTful web service.


 
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